The using of complex estimative indicator in estimation of state of recreational pine forests in SNPP "Burabay"

In the result of conducted researchers studied of state of natural pine forest of State National Natural Park (SNPP) «Burabay» located in the North-Western part of the Kazakh Upland. Object of research are high-density pine forests of age class VI, which grow in dry (forest type - C2) and fresh (forest type - C3) forest conditions in various functional zones. For the first time, in the assessment of the state of pine forests, was used the complex estimative indicator (CEI). It is established that the value of the index of vital status and in magnitude of complex estimative indicator, pine forest stands is rated as «weakened» or biologically unstable. The lowest values of the index of vital status and the highest values of complex estimative indicator are characterized by forest stands in the zone of active visit (FZ-I). Studied the change of complex estimative indicator (CEI) depending on the of categories of vital status of the trees and fineness of trees. The results of researches have shown that the lowest value of complex of the estimated indicators (CEI) characterized trees of categories of vital status «healthy». The value of complex of the estimated indicators (CEI) trees whose condition is characterized as «greatly weakened» and «dying» in the 1.8-2.1 times higher than the value of this indicator of the «healthy» trees. It is established that «weakened» trees in the zone of active visit (FZ-I) is characterized by the lowest values of CEI, in comparison with other functional zones (FZ). It is found that the relationship of complex estimative indicator (CEI) with vital status of pine forests approximated by the linear and polynomial functions. It was found relationship between complex estimative indicator (CEI) and indexes of vital status by the numbers of trees and fineness of trees. The complex estimative indicator or the coefficient of growth of tension (CEI) is can be used in the assessment of state of pine forest stands of recreational purposes.