Sea level rise is often associated with climate change and global warming. The in shoreline a continuous process that occurs through various processes such as erosion, sedimentation, sea rise, wave behaviour land use. Rapid technological advancement has made it possible to quickly identify the changes combination of Geographical Information Systems (GIS) application Remote Sensing technology. c...

Bastin et al (Reports, 12 May 2017, p. 635) claim to have discovered 467 million hectares of new dryland forest. We would argue that these additional areas are not completely "new" and that some have been reported before. A second shortcoming is that not all sources of uncertainty are considered; the uncertainty could be much higher than the reported value of 3.5%.

Misty MacDuffee sampling chinook and coho fry in a tributary of the Ecstall River. At 85,000 hectares, the Ecstall is the largest unlogged watershed on the North coast. It supports nine species of salmonids which spawn up to 96 km upstream and in more than one dozen of the watershed's tributaries and lakes.

The protection forest system for Taipei City, the capital of Taiwan, was established in 1907. The social and natural environment had changed drastically in the past few decades, however, the maps and cadastral records of these forests were not updated accordingly. In this study, digital surveying techniques were used to survey the boundaries, sample plots, and land use of the protection forests...

Conservation tillage reduces the physical movement of soil to the minimum required for crop establishment and production. When consistently practiced as a soil and crop management system, it greatly reduces soil erosion and is recognized for the potential to improve soil quality and water conservation and plant available water. Adoption of conservation tillage increased dramatically with the ad...

The Amazon region is one of the most diverse areas in the world. Research on high tropical forest diversity brings up relevant contributions to understand the mechanisms that result and support such diversity. In the present study we describe the species composition and diversity of 15 one-ha plots in the Amazonian terra firme dense forest in Brazil, and compare the floristic similarity of thes...

The Republic of Kazakhstan has good potential for developing environmentally friendly agricultural production: extensive land, a large number farms, and interest in producing environmentally-friendly products. These factors determined the relevance study, main purpose which was to investigate areas development organic agriculture Kazakhstan. statistical data reports Research Institute Organic A...

Introduction: India with hard coal production of about 254 MT from about 550 nationalised mines in 1994-95 is the third largest coal producing country in the world after China & USA. The country with 16.4 percent population of the world has measure 6.8 percent share of proved world coal resources. Coalfield over an area of 4.37 million hectares out of the total land surface of 328.8 million hec...

A ca. 2010, 30 m resolution map depicting annually tilled areas across the conterminous United States was developed. Input sources included four years, spanning 2008–2011, of annual national-level coverage Cropland Data Layer (CDL) land cover classifications as produced by the National Agricultural Statistics Service. Derived total land area under tillage from the aggregate CDL product equaled ...

Bihar has a total geographical area of 93.60 lakh hectares on which it houses population 82.9 million, thereby generating density 880 persons per sq. km (Census 2001). Gross sown in the State is 79.46 hectares, while net 56.03 hectares. There are around 1.04 crore landholdings 83 percent marginal holdings size less than 1 hectare (Table 1). With 90 living rural areas, agriculture as primary fee...